Roof Vent Pipe Boot Base Shape Round Base Material Aluminum Cap/Collar Material EPDM Material Thickness 16 ga For Roof Angle 40 Degrees For Number of Pipes 1 For Maximum Pipe Size 13 in For Minimum Pipe Size 7 in Base Diameter 16 3/4 in Seal Material EPDM Top Opening Open Application Pipe Vents Product Type Watertight Flashing UV Protected Yes For Roof Type Pitched Standards UPC Maximum Ambient Temperature 302 Degrees F Minimum Temperature 58 Degrees F Roof Pitch Range 10 12